展开全部
41.2×8.1+11×9.25+53.7×1.9
=41.2×8.1+11×9.25+(41.2+12.5)×1.9
=41.2×8.1+41.2×1.9+11×9.25+12.5×1.9
=41.2×(8.1+1.9)+11×(8+1.25)+12.5×1.9
=41.2×10+11×8+11×1.25+12.5×1.9
=412+11×8+1.1×12.5+12.5×1.9
=412+88+12.5×(1.1+1.9)
=412+88+37.5
=537.5
=41.2×8.1+11×9.25+(41.2+12.5)×1.9
=41.2×8.1+41.2×1.9+11×9.25+12.5×1.9
=41.2×(8.1+1.9)+11×(8+1.25)+12.5×1.9
=41.2×10+11×8+11×1.25+12.5×1.9
=412+11×8+1.1×12.5+12.5×1.9
=412+88+12.5×(1.1+1.9)
=412+88+37.5
=537.5
参考资料： 希望帮到你！
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
